Deposition and removal

How is particle deposition and removal from the lung influenced by the size of the particles ... 

To a solution of 0.05 mol of the above-obtained ester in about 100 ml of anhydrous benzene there are added 15 ml of methyl iodide. The ensuing mixture is refluxed for several hours whereupon the quaternary salt is deposited and removed by filtration. Recrystallization from ethanol or ethanol-ether yields the quaternary salt, melting point 199°C to 200°C. 

Finally, periodic cleaning of the burner head and nebulizer is needed to ensure minimal noise level due to impurities in the flame. Scraping the slot in the burner head with a sharp knife or razor blade to remove carbon deposits and removing the burner head for the purpose of cleaning it in an ultrasonic cleaner bath are two commonplace maintenance chores. The nebulizer should be dismantled, inspected, and cleaned periodically to remove impurities that may be collected there. 

Schwartz BE, Ahmad K (2005) Transcriptional activation triggers deposition and removal of the histone variant H3.3. Genes Dev 19 804-814... 

Saito A, Yamashita T, Mariko Y, Nosaka Y, Tsuchiya K, Ando T, Suzuki T, Tsurao T, Nakanishi O (1999) A synthetic inhibitor of histone deacetylase, MS-27-275, with marked in vivo antitumor activity against human tumors. Proc Natl Acad Sci USA 96(8) 4592-4597 Schneider R, Bannister AJ, Myers FA, Thorne AW, Crane-Robinson C, Kouzarides T (2004) Histone H3 lysine 4 methylation patterns in higher eukaryotic genes. Nature 6 73-77 Schwartz BE, Ahmad K (2005) Transcriptional activation triggers deposition and removal of the histone variant H3.3. Genes Dev 19 804-814... 

Here, Cf is the mean concentration of foulant in the film whose thickness at any time t is 6f, and m and m are, respectively, the mass of foulant deposited and removed per unit area per unit time. Assuming the deposition rate to be independent of the foulant film thickness and the removal rate to be linearly dependent on the film thickness, we may write a first-order rate equation for the film growth. From Eq. (1) this equation is given by... 

Figure 7.16 An illustration of the efficiency of back-pulsing in removing fouling materials from the surface of microfiltration membranes. Direct microscopic observations of Mores and Davis [9] of cellulose acetate membranes fouled with a 0.1 wt% yeast suspension. The membrane was backflushed with permeate solution at 3 psi for various times. Reprinted from J. Membr. Sci. 189, W.D. Mores and R.H. Davis, Direct Visual Observation of Yeast Deposition and Removal During Microfiltration, p. 217, Copyright 2001, with permission from Elsevier...

W.D. Mores and R.H. Davis, Direct Visual Observation of Yeast Deposition and Removal During Microfiltration, J. Membr. Sci. 189, 217 (2001). 

Figure 38 Deposition and removal of protein from anchovy over a 3-year period. (After Shulman, 1972a.)...

Sediment deposition is defined as the temporary emplacement of particles on the seabed while sediment accumulation is defined as the net sum of particle deposition and removal processes over a long period. The term sedimentation refers to integrated particle transport to—and emplacement—on the seabed, as well as removal, and preservation. 

Sediment accumulation the net sum of particle deposition and removal processes over... 

Itano M, Kern FW Jr, Kawanabe I, Miyashita M, Rosenberg RW, Ohmi T. Particle deposition and removal in wet cleaning processes for semiconductor manufacturing. IEEE Trans Semicond Manuf 1992 5 114-120. 

Solving for XIM produces Equation (8.24), where a = (XIM) i, and b = kjk. Note that in the derivation no mention is made of how many layers of molecules are sorbed onto or desorbed from the activated carbon. It is simply that solutes are sorbed and desorbed, irrespective of the counts of the layers of molecules however, it is conceivable that as the molecules are deposited and removed, the process occurs layer by layer. 

Particle Deposition and Removal from the Collector Electrodes... 

Markkola, A. M., Ahonen-Jonnarth, U., Roitto, M., Strommer, R., and Hyvarinen, M. (2002). Shift in ectomycorrhizal community composition in Scots pine (Pinus sylvestris L.) seedling roots as a response to nickel deposition and removal of lichen cover. Environ. Pollut. 120, 797-803. 

Coke accumulation is the difference between coke deposition and removal. Both occur, although at different rates. Well-designed catalysts provide an economic balance between the two. Deposition from hydrocarbons occurs in two ways, on acid sites and on dehydrogenation sites ... 

Region B represents the steady growth of the deposit on the surface. Under these circumstances there is competition between deposition and removal. The rate of deposition gradually falls while the rate of removal of deposit gradually... 

In Chapter I it was stated that the rate of build up of deposit on a surface could be defined by the simple concept of the difference between the rates of deposition and removal. In more precise mathematical terms... 

METAL DEPOSITION AND REMOVAL OF METAL TRACES FROM ELECTROLYTES... 

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